.tips {
    position: absolute;
    background: rgba(0,0,0,.6);
    color: #FFF;
    z-index: 9999999;
    font-size: 14px;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    text-align: center;
    width: 150px;
    height: 48px;
    line-height: 48px;
    margin: auto;
    border-radius: 2px;
}

@keyframes bounceIn {
    0%{
        opacity:0;
        transform:scale(.5)
    }
    100%{
        opacity:1;
        transform:scale(1)
    }
}
 
.bounceIn {
  animation-name: bounceIn;
  animation-duration: .5s;
}